{"version":"1.0","provider_name":"LS\u96fb\u6e90\u30c8\u30e9\u30f3\u30b9\u3001\u7089\u3067\u306f\u3001\u9ad8\u96fb\u5727\u30c8\u30e9\u30f3\u30b9\u3001\u6cb9\u5165\u5909\u5727\u5668-\u9577\u6c99(\u9577\u6c99\u7687\u51a0\u4eee\u65e5\u9152\u5e97)\u5eec\u5c71\u96fb\u5b50\u6280\u8853\u682a\u5f0f\u682a\u5f0f\u4f1a\u793e","provider_url":"https:\/\/www.lstransformer.com\/ja","author_name":"xiangligougou","author_url":"https:\/\/www.lstransformer.com\/ja\/author\/xiangligougou\/","title":"Rail Transit\uff5cHigh-speed EMU Case - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"X9ItqugEfj\"><a href=\"https:\/\/www.lstransformer.com\/ja\/rail-transit%ef%bd%9chigh-speed-emu-case\/\">\u9244\u9053\u8f38\u9001\uff5c\u9ad8\u901fEMU\u306e\u5834\u5408<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.lstransformer.com\/ja\/rail-transit%ef%bd%9chigh-speed-emu-case\/embed\/#?secret=X9ItqugEfj\" width=\"600\" height=\"338\" title=\"&#8220;Rail Transit\uff5cHigh-speed EMU Case&#8221; &#8212; LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" data-secret=\"X9ItqugEfj\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.lstransformer.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","description":"Power systems of high-speed EMUs impose extremely strict requirements for safety, stability and precision, different from ordinary industrial equipment. Complete vehicles are equipped with dozens of power-consuming devices including traction systems, braking systems, air-conditioning &amp; ventilation systems, signal-control systems, on-board lighting and audio-visual systems, featuring large divergences in voltage levels, operating conditions and load characteristics among various units. During vehicle operation, high-speed travel generates continuous high-frequency vibration; tunnel penetration causes air-pressure fluctuations; frequent acceleration-deceleration and speed-switching bring sharp load transitions; catenary power supply introduces minor voltage fluctuations and clutter interference. Superimposed electromagnetic radiation and interference from densely-packed on-board electrical equipment readily lead to power-supply disorder. Without dedicated anti-vibration, low-noise and [&hellip;]"}